//sensore crepuscolare con arduino

int analogInPin = A0;
int sensorValue = 0;
int ledR = 5;
int ledV = 3;
 
void setup() {
  Serial.begin(9600);
  pinMode( analogInPin, INPUT);
  pinMode (ledR, OUTPUT);
  pinMode (ledV, OUTPUT);
}

//void loop() {
// read the input on analog pin 0:
//int sensorValue = analogRead(A0);
// Convert the analog reading (which goes from 0 – 1023) to a voltage (0 – 5V):
//float voltage = sensorValue * (5.0 / 1023.0);
// print out the value you read:
//Serial.println(voltage);
//}

void loop() {
  sensorValue = analogRead(analogInPin);
  int sensorValue = analogRead(A0);
  float voltage = sensorValue * (5.0 / 1023.0);
  if (sensorValue<200){
    digitalWrite (ledV,HIGH);          
  }
  else{
    digitalWrite (ledV,LOW);
  }
  if (sensorValue>700){
    digitalWrite (ledR,HIGH);
  }
  else{
    digitalWrite (ledR,LOW);
  }
 
  Serial.print("sensor = " );
  Serial.println(voltage);      
  Serial.println(sensorValue);      
 
  delay(1000);
}